The cause of plagiotropy in maritime shore planta 



9 



Fig. 'J. Prostate forms of Atriplex latifolium (left), A. pattiluin 

 (right) on the beach. From Wauming 1906. 



Plioto H. Lundegârdh. 



Fig. 3. A part of the upper supralittoral belt, Vinga Skär near Hallands 

 Väderö. The horizontally expanded plant in the middle is Matricaria 

 maritima. Small prostrate specimens of Polygonum avictdare grow 

 on both sides of it. Higher up on the beach follows Salsola 

 l~ali (in the background almost erect). 



2 



